Merge pull request #54 from hathach/develop

fix #53

README.md

@@ -2,7 +2,7 @@
 
 [![Build Status](https://travis-ci.org/hathach/tinyusb.svg?branch=master)](https://travis-ci.org/hathach/tinyusb) [![License](https://img.shields.io/badge/license-MIT-brightgreen.svg)](https://opensource.org/licenses/MIT)
 
-TinyUSB is an open-source cross-platform USB Host/Device stack for embedded system.
+TinyUSB is an open-source cross-platform USB Host/Device stack for embedded system. It is designed to be memory-safe with no dynamic allocation and thread-safe with all interrupt events are deferred then handled in the stack's task function.
 
 ![tinyusb](https://user-images.githubusercontent.com/249515/49858616-f60c9700-fe27-11e8-8627-e76936352ff7.png)
 
@@ -21,8 +21,10 @@ TinyUSB is an open-source cross-platform USB Host/Device stack for embedded syst
 
 ## Device Stack
 
-- Human Interface Device (HID): Keyboard, Mouse, Generic
+Support multiple device configurations by dynamically changing usb descriptors. Low power functions such as suspend, resume and remote wakeup. Following device classes are supported:
+
 - Communication Class (CDC)
+- Human Interface Device (HID): Keyboard, Mouse, Generic
 - Mass Storage Class (MSC)
 - Musical Instrument Digital Interface (MIDI)
 
@@ -61,6 +63,14 @@ The stack is developed with GCC compiler, and should be compilable with others.
 
 [Here is the details for getting started](docs/getting_started.md) with the stack.
 
+## Porting
+
+Want to help add TinyUSB support for a new MCU? Read [here](docs/porting.md) for an explanation on the low-level API needed by TinyUSB.
+
+## License
+
+MIT license for all TinyUSB sources `src` folder, [Full license is here](LICENSE). However each file is individually licensed especially those in `lib` and `hw/mcu` folder. Please make sure you understand all the license term for files you use in your project.
+
 ## Uses
 
 TinyUSB is currently used by these other projects:
@@ -69,10 +79,4 @@ TinyUSB is currently used by these other projects:
 * [Adafruit nRF52 Bootloader](https://github.com/adafruit/Adafruit_nRF52_Bootloader)
 * [CircuitPython](https://github.com/adafruit/circuitpython)
 
-## Porting
+If your project also uses TinyUSB and want to share, feel free to create a pull request.
-
-Want to help add TinyUSB support for a new MCU? Read [here](docs/porting.md) for an explanation on the low-level API needed by TinyUSB.
-
-## License
-
-MIT license for all tinyusb sources [Full license is here](tinyusb/license.md) and most of the code base. However each file/folder is individually licensed especially those in `lib` and `hw/mcu` folder. Please make sure you understand all the license term for files you use in your project.

docs/boards.md

@@ -1,14 +1,19 @@
-# Boards #
+# Boards
 
-## Supported Boards ##
+The board support code is only used for self-contained examples and testing. It is not used when TinyUSB is part of a larger project. It is responsible for getting the MCU started and the USB peripheral clocked withminimal of on-board devices
+- One LED for status with different blink pattern
+- One Button to get input from user
+- One UART optionally, mostly for host examples
+ 
+## Supported Boards
 
 This code base already had supported for a handful of following boards
 
-### Nordic nRF5x ###
+### Nordic nRF5x
 
 - [nRF52840-DK (aka pca10056)](https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-DK)
 
-### NXP LPC ###
+### NXP LPC
 
 - [LPCXpresso 11U68](https://www.nxp.com/support/developer-resources/evaluation-and-development-boards/lpcxpresso-boards/lpcxpresso-board-for-lpc11u68:OM13058)
 - [LPCXpresso 1347](https://www.nxp.com/support/developer-resources/evaluation-and-development-boards/lpcxpresso-boards/lpcxpresso-board-for-lpc1347:OM13045)
@@ -17,17 +22,46 @@ This code base already had supported for a handful of following boards
 - [Embedded Artists LPC4088 Quick Start board](https://www.embeddedartists.com/products/lpc4088-quickstart-board)
 - [Embedded Artists LPC4357 Developer Kit](http://www.embeddedartists.com/products/kits/lpc4357_kit.php)
 
-### MicroChip SAMD ###
+### MicroChip SAMD
 
 - [Adafruit Metro M0 Express](https://www.adafruit.com/product/3505)
 - [Adafruit Metro M4 Express](https://www.adafruit.com/product/3382)
 
-### ST STM32 ###
+### ST STM32
 
 - [STM32F4 Discovery](https://www.st.com/en/evaluation-tools/stm32f4discovery.html)
 
-## Add your own board ##
+## Add your own board
 
 If you don't possess any of supported board above. Don't worry you can easily implemented your own one by following this guide as long as the mcu is supported.
 
-**Guide to implement a new board is coming soon** ...
+- Create new makefile for your board at `hw/bsp/<board name>/board.mk` and linker file as well if needed.
+- Create new source file for your board at `hw/bsp/<board name>/board_<board name>.c` and implement following APIs
+
+### Board APIs
+
+#### board_init()
+
+Is responsible for starting the MCU, setting up the USB clock and USB pins. It is also responsible for initializing LED and button pins.
+One useful clock debugging technique is to set up a PWM output at a known value such as 500hz based on the USB clock so that you can verify it is correct with a logic probe or oscilloscope.
+Setup your USB in a crystal-less mode when available. That makes the code easier to port across boards.
+
+#### board_led_write()
+
+Set the pin corresponding to the led to output a value that lights the LED when `state` is true.
+
+#### board_button_read()
+
+Return current state of button, a `1` means active (pressed), a `0` means inactive.
+
+#### board_millis()
+
+The function returns the elapsed number of milliseconds since startup. On ARM this is commonly done with SysTick or Timer. This provide examples a way to measure time to blink LED or delay properly. It is only required when run examples without RTOS `CFG_TUSB_OS == OPT_OS_NONE`.
+
+#### board_uart_read()
+
+Get characters from UART peripheral.
+
+####  board_uart_write()
+
+Send characters to UART peripheral.

docs/porting.md

@@ -44,7 +44,7 @@ One useful clock debugging technique is to set up a PWM output at a known value
 
 Setup your USB in a crystal-less mode when available. That makes the code easier to port across boards.
 
-#### board_led_control
+#### board_led_write
 Feel free to skip this until you want to verify your demo code is running. To implement, set the pin corresponding to the led to output a value that lights the LED when `state` is true.
 
 ### OS Abstraction Layer (OSAL)

examples/device/cdc_msc_hid/ses/nrf5x/nrf5x.emProject

@@ -20,7 +20,7 @@
       arm_target_interface_type="SWD"
       build_treat_warnings_as_errors="Yes"
       c_preprocessor_definitions="NRF52840_XXAA;__nRF_FAMILY;ARM_MATH_CM4;FLASH_PLACEMENT=1;CFG_TUSB_MCU=OPT_MCU_NRF5X"
-      c_user_include_directories="../../src;$(rootDir)/hw/cmsis/Include;$(rootDir)/hw;$(rootDir)/src;$(nrfxDir)/..;$(nrfxDir);$(nrfxDir)/mdk;$(nrfxDir)/hal;$(nrfxDir)/drivers/include"
+      c_user_include_directories="../../src;$(rootDir)/hw/cmsis/Include;$(rootDir)/hw;$(rootDir)/src;$(nrfxDir)/..;$(nrfxDir);$(nrfxDir)/mdk;$(nrfxDir)/hal;$(nrfxDir)/drivers/include;$(nrfxDir)/drivers/src"
       debug_register_definition_file="nrf52840_Registers.xml"
       debug_target_connection="J-Link"
       gcc_enable_all_warnings="Yes"

examples/device/cdc_msc_hid/src/main.c

@@ -245,6 +245,6 @@ void led_blinking_task(void)
   if ( board_millis() < start_ms + blink_interval_ms) return; // not enough time
   start_ms += blink_interval_ms;
 
-  board_led_control(led_state);
+  board_led_write(led_state);
   led_state = 1 - led_state; // toggle
 }

examples/device/cdc_msc_hid_freertos/src/main.c

@@ -230,6 +230,6 @@ void led_blinky_cb(TimerHandle_t xTimer)
   (void) xTimer;
   static bool led_state = false;
 
-  board_led_control(led_state);
+  board_led_write(led_state);
   led_state = 1 - led_state; // toggle
 }

examples/host/cdc_msc_hid/src/main.c

@@ -173,7 +173,7 @@ void led_blinking_task(void)
   if ( board_millis() < start_ms + interval_ms) return; // not enough time
   start_ms += interval_ms;
 
-  board_led_control(led_state);
+  board_led_write(led_state);
   led_state = 1 - led_state; // toggle
 }
 

hw/bsp/board.h

@@ -53,7 +53,7 @@
 void board_init(void);
 
 // Turn LED on or off
-void board_led_control(bool state);
+void board_led_write(bool state);
 
 // Get the current state of button
 // a '1' means active (pressed), a '0' means inactive.
@@ -87,12 +87,12 @@ int board_uart_write(void const * buf, int len);
 //--------------------------------------------------------------------+
 static inline void board_led_on(void)
 {
-  board_led_control(true);
+  board_led_write(true);
 }
 
 static inline void board_led_off(void)
 {
-  board_led_control(false);
+  board_led_write(false);
 }
 
 static inline int8_t board_uart_getchar(void)

hw/bsp/ea4088qs/board_ea4088qs.c

@@ -114,7 +114,7 @@ void board_init(void)
 
 
 //------------- LED -------------//
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state);
 }

hw/bsp/ea4357/board_ea4357.c

@@ -248,7 +248,7 @@ void board_init(void)
 }
 
 // LED
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   if (state)
   {

hw/bsp/lpcxpresso11u68/board_lpcxpresso11u68.c

@@ -113,7 +113,7 @@ uint32_t board_millis(void)
 //--------------------------------------------------------------------+
 // LEDS
 //--------------------------------------------------------------------+
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
 }

hw/bsp/lpcxpresso1347/board_lpcxpresso1347.c

@@ -126,7 +126,7 @@ uint32_t board_millis(void)
 //--------------------------------------------------------------------+
 // LEDS
 //--------------------------------------------------------------------+
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state);
 }

hw/bsp/lpcxpresso1769/board_lpcxpresso1769.c

@@ -164,7 +164,7 @@ uint32_t board_millis(void)
 //--------------------------------------------------------------------+
 // LEDS
 //--------------------------------------------------------------------+
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state);
 }

hw/bsp/mcb1800/board_mcb1800.c

@@ -178,7 +178,7 @@ void board_init(void)
 }
 
 //------------- LED -------------//
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state);
 }

hw/bsp/metro_m0_express/board_metro_m0_express.c

@@ -101,7 +101,7 @@ void board_init(void)
   _gclk_enable_channel(TCC0_GCLK_ID, GCLK_CLKCTRL_GEN_GCLK0_Val);
 }
 
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   gpio_set_pin_level(LED_PIN, state);
 }

hw/bsp/metro_m4_express/board_metro_m4_express.c

@@ -90,7 +90,7 @@ void board_init(void)
   gpio_set_pin_function(PIN_PA25, PINMUX_PA25H_USB_DP);
 }
 
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   gpio_set_pin_level(LED_PIN, state);
 }

hw/bsp/pca10056/board.mk

@@ -29,6 +29,7 @@ INC += \
 	-I$(TOP)/hw/mcu/nordic/nrfx/mdk \
 	-I$(TOP)/hw/mcu/nordic/nrfx/hal \
 	-I$(TOP)/hw/mcu/nordic/nrfx/drivers/include \
+	-I$(TOP)/hw/mcu/nordic/nrfx/drivers/src \
 
 SRC_S += hw/mcu/nordic/nrfx/mdk/gcc_startup_nrf52840.S
 

hw/bsp/pca10056/board_pca10056.c

@@ -78,7 +78,7 @@ void board_init(void)
 
   // LED
   nrf_gpio_cfg_output(LED_PIN);
-  board_led_control(false);
+  board_led_write(false);
 
   // Button
   nrf_gpio_cfg_input(BUTTON_PIN, NRF_GPIO_PIN_PULLUP);
@@ -126,7 +126,7 @@ void board_init(void)
   if ( usb_reg & POWER_USBREGSTATUS_OUTPUTRDY_Msk  ) tusb_hal_nrf_power_event(NRFX_POWER_USB_EVT_READY);
 }
 
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   nrf_gpio_pin_write(LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
 }

hw/bsp/stm32f303disc/board_stm32f303disc.c

@@ -92,7 +92,7 @@ void board_init(void)
 }
 
 
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   HAL_GPIO_WritePin(GPIOE, GPIO_PIN_9, state);
 }

hw/bsp/stm32f407g_disc1/board_stm32f407g_disc1.c

@@ -82,7 +82,7 @@ void board_init(void)
 }
 
 
-void board_led_control(bool state)
+void board_led_write(bool state)
 {
   if (!state) {
     GPIOD->BSRR = GPIO_BSRR_BR14;

src/osal/osal.h

@@ -34,7 +34,6 @@
 /** \addtogroup group_osal
  *  @{ */
 
-#include "tusb_option.h"
 #include "common/tusb_common.h"
 
 enum
@@ -48,34 +47,33 @@ enum
 
 typedef void (*osal_task_func_t)( void * );
 
+//--------------------------------------------------------------------+
+// OSAL Porting API
+//--------------------------------------------------------------------+
+#if 0
+void osal_task_delay(uint32_t msec);
+
+//------------- Semaphore -------------//
+osal_semaphore_t osal_semaphore_create(osal_semaphore_def_t* semdef);
+bool osal_semaphore_post(osal_semaphore_t sem_hdl, bool in_isr);
+bool osal_semaphore_wait (osal_semaphore_t sem_hdl, uint32_t msec);
+
+void osal_semaphore_reset(osal_semaphore_t sem_hdl); // TODO removed
+
+//------------- Mutex -------------//
+osal_mutex_t osal_mutex_create(osal_mutex_def_t* mdef);
+bool osal_mutex_lock (osal_mutex_t sem_hdl, uint32_t msec);
+bool osal_mutex_unlock(osal_mutex_t mutex_hdl);
+
+//------------- Queue -------------//
+osal_queue_t osal_queue_create(osal_queue_def_t* qdef);
+bool osal_queue_receive(osal_queue_t const qhdl, void* data);
+bool osal_queue_send(osal_queue_t const qhdl, void const * data, bool in_isr);
+#endif
+
 #if CFG_TUSB_OS == OPT_OS_NONE
   #include "osal_none.h"
 #else
-  /* RTOS Porting API
-   *
-   * Task
-   *    void osal_task_delay(uint32_t msec)
-   *
-   * Queue
-   *     osal_queue_def_t, osal_queue_t
-   *     osal_queue_t osal_queue_create(osal_queue_def_t* qdef)
-   *     osal_queue_receive (osal_queue_t const queue_hdl, void *p_data, uint32_t msec, uint32_t *p_error)
-   *     bool osal_queue_send(osal_queue_t const queue_hdl, void const * data, bool in_isr)
-   *
-   * Semaphore
-   *    osal_semaphore_def_t, osal_semaphore_t
-   *    osal_semaphore_t osal_semaphore_create(osal_semaphore_def_t* semdef)
-   *    bool osal_semaphore_post(osal_semaphore_t sem_hdl, bool in_isr)
-   *    bool osal_semaphore_wait(osal_semaphore_t sem_hdl, uint32_t msec)
-   *    void osal_semaphore_reset(osal_semaphore_t const sem_hdl)
-   *
-   * Mutex
-   *    osal_mutex_t
-   *    osal_mutex_create(osal_mutex_def_t* mdef)
-   *    bool osal_mutex_unlock(osal_mutex_t mutex_hdl)
-   *    void osal_mutex_lock(osal_mutex_t mutex_hdl, uint32_t msec, uint32_t *p_error)
-   */
-
   #if CFG_TUSB_OS == OPT_OS_FREERTOS
     #include "osal_freertos.h"
   #elif CFG_TUSB_OS == OPT_OS_MYNEWT

src/osal/osal_freertos.h

@@ -83,7 +83,10 @@ static inline osal_mutex_t osal_mutex_create(osal_mutex_def_t* mdef)
   return xSemaphoreCreateMutexStatic(mdef);
 }
 
-#define osal_mutex_lock     osal_semaphore_wait
+static inline bool osal_mutex_lock (osal_mutex_t mutex_hdl, uint32_t msec)
+{
+  return osal_semaphore_wait(mutex_hdl, msec);
+}
 
 static inline bool osal_mutex_unlock(osal_mutex_t mutex_hdl)
 {

src/osal/osal_none.h

@@ -95,8 +95,15 @@ static inline osal_mutex_t osal_mutex_create(osal_mutex_def_t* mdef)
   return mdef;
 }
 
-#define osal_mutex_lock                 osal_semaphore_wait
+static inline bool osal_mutex_lock (osal_mutex_t mutex_hdl, uint32_t msec)
-#define osal_mutex_unlock(_mutex_hdl)   osal_semaphore_post(_mutex_hdl, false)
+{
+  return osal_semaphore_wait(mutex_hdl, msec);
+}
+
+static inline bool osal_mutex_unlock(osal_mutex_t mutex_hdl)
+{
+  return osal_semaphore_post(mutex_hdl, false);
+}
 
 //--------------------------------------------------------------------+
 // QUEUE API

src/portable/nordic/nrf5x/hal_nrf5x.c

@@ -32,7 +32,7 @@
 #include "nrf_gpio.h"
 #include "nrf_clock.h"
 #include "nrf_usbd.h"
-#include "nrf_drv_usbd_errata.h"
+#include "nrfx_usbd_errata.h"
 
 #ifdef SOFTDEVICE_PRESENT
 #include "nrf_sdm.h"
@@ -122,7 +122,7 @@ void tusb_hal_nrf_power_event (uint32_t event)
         /* Enable the peripheral */
         // ERRATA 171, 187, 166
 
-        if ( nrf_drv_usbd_errata_187() )
+        if ( nrfx_usbd_errata_187() )
         {
           // CRITICAL_REGION_ENTER();
           if ( *((volatile uint32_t *) (0x4006EC00)) == 0x00000000 )
@@ -138,7 +138,7 @@ void tusb_hal_nrf_power_event (uint32_t event)
           // CRITICAL_REGION_EXIT();
         }
 
-        if ( nrf_drv_usbd_errata_171() )
+        if ( nrfx_usbd_errata_171() )
         {
           // CRITICAL_REGION_ENTER();
           if ( *((volatile uint32_t *) (0x4006EC00)) == 0x00000000 )
@@ -168,7 +168,7 @@ void tusb_hal_nrf_power_event (uint32_t event)
       nrf_usbd_eventcause_clear(USBD_EVENTCAUSE_READY_Msk);
       nrf_usbd_event_clear(USBD_EVENTCAUSE_READY_Msk);
 
-      if ( nrf_drv_usbd_errata_171() )
+      if ( nrfx_usbd_errata_171() )
       {
         // CRITICAL_REGION_ENTER();
         if ( *((volatile uint32_t *) (0x4006EC00)) == 0x00000000 )
@@ -185,7 +185,7 @@ void tusb_hal_nrf_power_event (uint32_t event)
         // CRITICAL_REGION_EXIT();
       }
 
-      if ( nrf_drv_usbd_errata_187() )
+      if ( nrfx_usbd_errata_187() )
       {
         // CRITICAL_REGION_ENTER();
         if ( *((volatile uint32_t *) (0x4006EC00)) == 0x00000000 )
@@ -201,7 +201,7 @@ void tusb_hal_nrf_power_event (uint32_t event)
         // CRITICAL_REGION_EXIT();
       }
 
-      if ( nrf_drv_usbd_errata_166() )
+      if ( nrfx_usbd_errata_166() )
       {
         *((volatile uint32_t *) (NRF_USBD_BASE + 0x800)) = 0x7E3;
         *((volatile uint32_t *) (NRF_USBD_BASE + 0x804)) = 0x40;

src/portable/nordic/nrf5x/nrf_drv_usbd_errata.h

@@ -1,210 +0,0 @@
-/**
- * Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form, except as embedded into a Nordic
- *    Semiconductor ASA integrated circuit in a product or a software update for
- *    such product, must reproduce the above copyright notice, this list of
- *    conditions and the following disclaimer in the documentation and/or other
- *    materials provided with the distribution.
- *
- * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
- *    contributors may be used to endorse or promote products derived from this
- *    software without specific prior written permission.
- *
- * 4. This software, with or without modification, must only be used with a
- *    Nordic Semiconductor ASA integrated circuit.
- *
- * 5. Any software provided in binary form under this license must not be reverse
- *    engineered, decompiled, modified and/or disassembled.
- *
- * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef NRF_DRV_USBD_ERRATA_H__
-#define NRF_DRV_USBD_ERRATA_H__
-
-#include <stdbool.h>
-/**
- * @defgroup nrf_drv_usbd_errata Functions to check if selected PAN is present in current chip
- * @{
- * @ingroup nrf_drv_usbd
- *
- * Functions here are checking the presence of an error in current chip.
- * The checking is done at runtime based on the microcontroller version.
- * This file is subject to removal when nRF51840 prototype support is removed.
- */
-
-#ifndef NRF_DRV_USBD_ERRATA_ENABLE
-/**
- * @brief The constant that informs if errata should be enabled at all
- *
- * If this constant is set to 0, all the Errata bug fixes will be automatically disabled.
- */
-#define NRF_DRV_USBD_ERRATA_ENABLE 1
-#endif
-
-/**
- * @brief Internal auxiliary function to check if the program is running on NRF52840 chip
- * @retval true  It is NRF52480 chip
- * @retval false It is other chip
- */
-static inline bool nrf_drv_usbd_errata_type_52840(void)
-{
-    return (*(uint32_t *)0x10000130UL == 0x8UL);
-}
-
-/**
- * @brief Internal auxiliary function to check if the program is running on Engineering A revision
- * @retval true  It is NRF52480 chip and it is Engineering A revision
- * @retval false It is other chip
- */
-static inline bool nrf_drv_usbd_errata_type_52840_eng_a(void)
-{
-    return (nrf_drv_usbd_errata_type_52840() && (*(uint32_t *)0x10000134UL == 0x0UL));
-}
-
-/**
- * @brief Internal auxiliary function to check if the program is running on Engineering B revision
- * @retval true  It is NRF52480 chip and it is Engineering B revision
- * @retval false It is other chip
- */
-static inline bool nrf_drv_usbd_errata_type_52840_eng_b(void)
-{
-    return (nrf_drv_usbd_errata_type_52840() && (*(uint32_t *)0x10000134UL == 0x1UL));
-}
-
-/**
- * @brief Internal auxiliary function to check if the program is running on Engineering C revision
- * @retval true  It is NRF52480 chip and it is Engineering C revision
- * @retval false It is other chip
- */
-static inline bool nrf_drv_usbd_errata_type_52840_eng_c(void)
-{
-    return (nrf_drv_usbd_errata_type_52840() && (*(uint32_t *)0x10000134UL == 0x2UL));
-}
-
-/**
- * @brief Internal auxiliary function to check if the program is running on Engineering D revision
- * @retval true  It is NRF52480 chip and it is Engineering D revision
- * @retval false It is other chip
- */
-static inline bool nrf_drv_usbd_errata_type_52840_eng_d(void)
-{
-    return (nrf_drv_usbd_errata_type_52840() && (*(uint32_t *)0x10000134UL == 0x3UL));
-}
-
-/**
- * @brief Function to check if chip requires errata 104
- *
- * Errata: USBD: EPDATA event is not always generated.
- *
- * @retval true  Errata should be implemented
- * @retval false Errata should not be implemented
- */
-static inline bool nrf_drv_usbd_errata_104(void)
-{
-    return (NRF_DRV_USBD_ERRATA_ENABLE && nrf_drv_usbd_errata_type_52840_eng_a());
-}
-
-/**
- * @brief Function to check if chip requires errata 154
- *
- * Errata: During setup read/write transfer USBD acknowledges setup stage without SETUP task.
- *
- * @retval true  Errata should be implemented
- * @retval false Errata should not be implemented
- */
-static inline bool nrf_drv_usbd_errata_154(void)
-{
-    return (NRF_DRV_USBD_ERRATA_ENABLE && nrf_drv_usbd_errata_type_52840_eng_a());
-}
-
-/**
- * @brief Function to check if chip requires errata 166
- *
- * Errata: ISO double buffering not functional
- *
- * @retval true  Errata should be implemented
- * @retval false Errata should not be implemented
- */
-static inline bool nrf_drv_usbd_errata_166(void)
-{
-    return (NRF_DRV_USBD_ERRATA_ENABLE && true);
-}
-
-/**
- * @brief Function to check if chip requires errata 171
- *
- * Errata: USBD might not reach its active state.
- *
- * @retval true  Errata should be implemented
- * @retval false Errata should not be implemented
- */
-static inline bool nrf_drv_usbd_errata_171(void)
-{
-    return (NRF_DRV_USBD_ERRATA_ENABLE && true);
-}
-
-/**
- * @brief Function to check if chip requires errata 187
- *
- * Errata: USB cannot be enabled
- *
- * @retval true  Errata should be implemented
- * @retval false Errata should not be implemented
- */
-static inline bool nrf_drv_usbd_errata_187(void)
-{
-    return (NRF_DRV_USBD_ERRATA_ENABLE && 
-            (nrf_drv_usbd_errata_type_52840_eng_b() ||
-             nrf_drv_usbd_errata_type_52840_eng_c() ||
-             nrf_drv_usbd_errata_type_52840_eng_d())
-           );
-}
-
-/**
- * @brief Function to check if chip requires errata 199
- *
- * Errata: USBD cannot receive tasks during DMA
- *
- * @retval true  Errata should be implemented
- * @retval false Errata should not be implemented
- */
-static inline bool nrf_drv_usb_errata_199(void)
-{
-    return (NRF_DRV_USBD_ERRATA_ENABLE && true);
-}
-
-/**
- * @brief Function to check if chip requires errata 200
- *
- * Errata: SIZE.EPOUT not writable
- *
- * @retval true  Errata should be implemented
- * @retval false Errata should not be implemented
- */
-static inline bool nrf_drv_usbd_errata_200(void)
-{
-    return (NRF_DRV_USBD_ERRATA_ENABLE && nrf_drv_usbd_errata_type_52840_eng_a());
-}
-
-/** @} */
-#endif /* NRF_DRV_USBD_ERRATA_H__ */